Football is an exciting game — in large part because the impact speeds between players are high. And I admit that I spent many years watching it. But that was before researchers showed us that the mechanics of the game systematically exceed the engineering design limits of even a helmeted human skull

The National Post receives plenty of feedback from our valued readers, many of whom reach out to our columnists directly. Here, our Full Comment team reads some of the best tweets, comments and emails. A few feelings might have been hurt in the production of this video.

As a theoretical physicist, Hawking lives in a world of thought experiments. So here’s one for him: How would his life have been different had he been born into Palestinian society, where disability is seen as a scandalous source of family dishonour?